Really? It's not possible to turn on Kinect? Even if you unplug it? Even if you cover it? Even if you put it in a cupboard? Whoa, that must be a marvelous piece of hardware.
It's also not clear if there will be a physical power button, meaning the only way to turn the damn thing on will be for Kinect to hear the phrase "Xbox On", meaning stuffing it in a cupboard won't be a particularly effective idea.